Screw cap



April 27 1926. 1,582,429

A. PODEL SCREW CAP Filed DeQ. 17, 1924 l/y' INVENTORv ATTORNEY Patented Apr. 27, 1926.

NITED STATES PATENT omer..

ABRAHAM PODEL, OF LONG ISLAND CITY, NEW YORK, ASSIGNOR TO ANCHORA CAP & CLOS'URE CORPORATION,

NEW YORK.

OF LONG ISLAND CITY, NEW YORK, A CORPORATION OF SCREW CAP.

Application filed December 17, 1924. Serial No. 756,415.

[o all 'whom it may concern: i Be it known that I, ABRAHAM Ponen, a citizen of the United States, residing at LongIsland City, Iin the county of Queens, State of New York, have invented certain new and useful Improvements in Screw Caps, of which the following is a specification. f

This invention relates broadly to closures i@ and more especially to closures of the screw cap type having a quick thread.

Heretofore in the art of quick thread screw caps the most common type has been one wherein lugs were provided on the cap l@ and recesses were provided on the closure finish. ln this type o f cap the lugs have necessarily comprised relatively small displacements ofmetal from the body of the cap and therefore have been more or less yielding so that when the cap was very tight-ly set there was a liability of the lugsy yielding suicientlyto permit the cap to slip over the nish on the glass and thereby make an insecure seal. v This has particularly been true where screw thread caps have been applied by machinery. It has also been common in the prior art to make quick thread caps wherein substantially the entire circumference of the cap skirt was screw threaded, thereby producing a configuration which did not lend itself well to ornamentation. Another diiliculty which has been encountered with caps of theprior art of the quick thread type has been that the caps frequently loosen in transit andv the seal is therefore ine'ectual.

Arlhe prese-nt invention which overcomes the difficulties of the known prior art is a closure o-f the interrupted screw type or to quick thread type in which the locking lugs are formed on the container and receptive grooves for the locking lugs are provided on the cap. The grooves and the lugs are each formed with suitable interlocking-protuberances in such manner that additional resistance isv provided against `unscrewing the cap from its sea-t on the container. y The formation of the lugs on the container provides a very strong construction and the provision of cylindrical portions in the side wall of the skirt of the cap provides sufficient resilience to eifectually permit the cap and the jar to be interlocked.

In view of the foregoing the principal object of the present invention is a quick thread screw cap in which the locking projections are formed on the finish of the container, preferably on the side wall thereof,V

and the indentations or interlocking grooves are formed at intervals in the skirt of the cap.

A further object of the present invent-ion is a screw thread cap of the character speciiied in which the displacements in the side Wall of the cap are spaced apart in such manner as to provide resilient cylindrical areas between individual displacements.

A still further and important object of the present invention is a cap of the character specied in which a change in direction or depth of the sides of a portion of the locln'ng members ,is provided in such manner as to retain the cap securely locked in position against accidental removal durin handling or transportation. l

ther and. further objects of the present invention will in part be obvious and will in part be pointed out hereinafter Iin the specification following by reference to the accompanying drawings, throughout which like parts are indicated by like characters.

Realizing that the present invention may be embodied in constructions other than those ,herein specifically disclosed, it is desired that the disclosure herewith shall be understood as beingl illustrative and not in the limiting sense.

Figure l is a perspective view illustrating a prefered embodiment of the present invention;

Figure 2 is a perspective view illustrating a container mouth having a finish adapte to receive the cap illustrated in Figure l.

Figure 3 is a sectional view of the cap shown in Figure l;

Figure 4 1s a plan view of the iinish of the glass shown in Figure 2;

Figure 5 is asectional' viewv taken'. on the at the point 11.

tion 16 of the cap line 5-5 to a groove on the cap and illustrates the locking en agement between the lug on the glass and t e engaging groove on the cap.

Referring now to the drawings, the preferred embodiment of the present invention comprises a closure cap made of sheet material and provided with a cover portion 1 Vand a depending skirt 2 preferably of cylindrical formation. The cover portion ma be provided with a bead or groove 4 which facilitates the bringing of a paper gasket 5 or the like into intimate sealing relation with` the top finish 6 on the container 7. The upper portion of the side wall of the skirt may be knul-led as at8 and the lower portion of the resilient skirt, if desired, may be finished with a roll edge, which stifi'ens the skirt and makes it more resilient. In the cylindrical space of the skirt between the roll edge and the knurled portion suitable inclined grooves 10 are provided with the lower portion of the grooves bei-ng slightly enlarged and slightly deeper It is understood that in referring to these members as grooves reference is being made to the interior of the skirt, that is, the members 10 and 11 lproject outwardl on the exterior of the skirt thereby provi in grooves on the interior of the skirt. T e lower portion of the skirt of the cap adjacent the roller edge 9 is flared outwardly at 12 in order to provide sufficient clearance to permit the locking lugs 14 and the enlarged portion 15 to pass into locking engagement with the corresponding members 10 and 11 in the side wall of the skirt of the cap. By reference to Figure 5 it will appear that when the cap is fully seated on the glass side wall the portion 11 receives the protuberances 15 on the glass and thereby interlocks the cap and the glass against the spiral movement necessary to unlock the cap from thecontainer. The side wall porrovides a suicient resilience to permit a yielding of the cap so that there is a spring action between the interlocking members to cause rayielding locking engagement. C

Having thus described my invention, what I claim is:

1. A closure cap comprising a cover portion, a skirt depending from said cover `or tion, inclined locking grooves presse in said skirt portion, an enlargement in a portion of each of said grooves, said grooves and said enlargements being adapted to cooperate simultaneously with projections formed upon the finish of a suitable container to hold the cap in place thereon.

2. A closure cap 4comprising a cover portion, a substantially cylindrical skirt depending from said cover portion,`inclined guiding grooves pressed in said skirt portion, an' elargement in the lower portion of each of said grooves, said rooves and said enlargements bein adapte to cooperate simultaneously wit projections formed upon the finish of a suitable container to hold the cap in place thereon.

3. A closure cap comprising a cover portion, a resilient skirt depending from said cover portion, inclined locking grooves pressed in said skirt portion, an enlargement in a portion of each of said grooves, said grooves and said enlar ements being adapted to be forced over an cooperate simultaneously with projections formed upon the finish of a suitable container to ermit the resilience of the skirt to hold t e cap in place on the container.

4. A closure cap comprising a cover portion, a skirt depending from the cover portion, a plurality of inclined locking grooves in the skirt, said grooves having deepened portions adapted to snap over a complementary formed projection on a suitable container to lock the cap in place.

5. A closure cap comprising a cover portion, a cylindrical skirt depending from the cover portion, a plurality of inclined guiding'grooves in the skirt, said grooves having off-set portions adapted to snap over complementar formed projections on a. suitable contalner to lock the cap in place.

6. In a closure cap, a skirthaving an outwardly fiared portion, outwardly pressed inclined locking grooves located above said ared portion, and an enlargement at the lower end of each of said grooves, said grooves and enlargements being adapted to cooperate with projections of complementary form on a suitable container.

7. In a closure cap, a skirt comprisin outwardly pressed locking recesses shape to rotatively cooperate with suitable projections on a container to seat the cap and then take a snap-on hold on the container projections.

8. A package comprising a container provided with locking projectlons; in combination with a closure comprising a skirt provided with outwardly pressed locking recesses, said projections and recesses being shaped to act as screw threads toseat the cap and then snap into interlocking engagement.

9. A package comprising a container having a finish provided with locking projections; in combination with a closure comprising a skirtY provided with a wire edge and outwardly pressed lookin recees, said projections and recesses being shaped to act as screw threads `to seat the cap and then be snapped into interlocking engagement by the resiliency of the skirt and wire ed e.

I0. A package, comprising a container having a substantially cylindrical nish provided wth downwardly inclined screw projections terminating 'in enlarged protuberances at their lower ends; in combination with a closure having a skirt lared outwardly at its lower edge, said skirt corn- 5 prising a Wire edge, corrugations in its upper portion, and downwarly inclined locking recesses merging 1nto enlargements at their lower ends, whereby the recesses of the skirt coact with the projections of the container as screw threads and the enlargements engage the container protuberances with a snap-on action when the closure is seated on the container.

ABRAHAM PODEL. 

